Home  |  Contact
Due to maintenance work, this service and ftp://ftp.expasy.org will be unavailable from Tuesday August 23rd 18:00 until Wednesday August 24th 08:00 CEST. Apologies for the inconvenience.

UniProtKB/Swiss-Prot P78363: Variant p.Pro1380Leu

Retinal-specific phospholipid-transporting ATPase ABCA4
Gene: ABCA4
Variant information

Variant position:  1380
The position of the amino-acid change on the UniProtKB canonical protein sequence.

Type of variant:  LP/P [Disclaimer]
The variants are classified into three categories: LP/P, LB/B and US.
  • LP/P: likely pathogenic or pathogenic.
  • LB/B: likely benign or benign.
  • US: uncertain significance

Residue change:  From Proline (P) to Leucine (L) at position 1380 (P1380L, p.Pro1380Leu).
Indicates the amino acid change of the variant. The one-letter and three-letter codes for amino acids used in UniProtKB/Swiss-Prot are those adopted by the commission on Biochemical Nomenclature of the IUPAC-IUB.

Physico-chemical properties:  Similar physico-chemical property. Both residues are medium size and hydrophobic.
The physico-chemical property of the reference and variant residues and the change implicated.

BLOSUM score:  -3
The score within a Blosum matrix for the corresponding wild-type to variant amino acid change. The log-odds score measures the logarithm for the ratio of the likelihood of two amino acids appearing by chance. The Blosum62 substitution matrix is used. This substitution matrix contains scores for all possible exchanges of one amino acid with another:
  • Lowest score: -4 (low probability of substitution).
  • Highest score: 11 (high probability of substitution).
More information can be found on the following page

Variant description:  In STGD1; also found in a patient with chorioretinal atrophy; reduced ATP-binding capacity; moderately decreases solubility; loss of cytoplasmic vesicle localization; decreases ATPase activity between 50% and 80%; decreases modestly N-Ret-PE-stimulated ATPase.
Any additional useful information about the variant.

Other resources:  
Links to websites of interest for the variant.

Sequence information

Variant position:  1380
The position of the amino-acid change on the UniProtKB canonical protein sequence.

Protein sequence length:  2273
The length of the canonical sequence.

The residue change on the sequence. Unless the variant is located at the beginning or at the end of the protein sequence, both residues upstream (20) and downstream (20) of the variant will be shown.

Residue conservation: 
The multiple alignment of the region surrounding the variant against various orthologous sequences.





Sequence annotation in neighborhood:  
The regions or sites of interest surrounding the variant. In general the features listed are posttranslational modifications, binding sites, enzyme active sites, local secondary structure or other characteristics reported in the cited references. The "Sequence annotation in neighborhood" lines have a fixed format:
  • Type: the type of sequence feature.
  • Positions: endpoints of the sequence feature.
  • Description: contains additional information about the feature.

Chain 1 – 2273 Retinal-specific phospholipid-transporting ATPase ABCA4
Transmembrane 1377 – 1397 Helical
Disulfide bond 641 – 1490 Interchain
Helix 1379 – 1393

Literature citations

A comprehensive survey of sequence variation in the ABCA4 (ABCR) gene in Stargardt disease and age-related macular degeneration.
Rivera A.; White K.; Stoehr H.; Steiner K.; Hemmrich N.; Grimm T.; Jurklies B.; Lorenz B.; Scholl H.P.N.; Apfelstedt-Sylla E.; Weber B.H.F.;
Am. J. Hum. Genet. 67:800-813(2000)
Cited for: VARIANTS STGD1 GLU-60; THR-60; GLU-65; LEU-68; ARG-72; CYS-212; SER-230; SER-247; VAL-328; LYS-471; PRO-541; GLN-572; ARG-607; LYS-635; CYS-653; TYR-764; ARG-765; ALA-901; ILE-959; LYS-1036; VAL-1038; PRO-1063; ASP-1087; CYS-1097; CYS-1108; LEU-1380; LYS-1399; PRO-1430; VAL-1440; HIS-1443; LEU-1486; TYR-1488; MET-1537; PRO-1689; LEU-1705; THR-1733; ARG-1748; PRO-1763; LYS-1885; HIS-1898; GLU-1961; ARG-1975; SER-1977; GLY-2077; TRP-2077 AND VAL-2241; VARIANTS GLN-152; HIS-212; ARG-423; ILE-552; ARG-914; GLN-943; THR-1562; ILE-1868; MET-1921; LEU-1948; PHE-1970; ALA-2059; ASN-2177 AND VAL-2216;

Mutations in ABCR (ABCA4) in patients with Stargardt macular degeneration or cone-rod degeneration.
Briggs C.E.; Rucinski D.; Rosenfeld P.J.; Hirose T.; Berson E.L.; Dryja T.P.;
Invest. Ophthalmol. Vis. Sci. 42:2229-2236(2001)
Cited for: VARIANTS STGD1 13-LYS--TRP-15 DEL; TYR-54; LYS-58; VAL-60; GLU-65; GLU-77; HIS-190; PRO-244; ARG-309; CYS-525; CYS-537; PRO-541; PRO-549; ARG-550; GLN-602; ARG-607; MET-643; ASP-767; PRO-797; ARG-821; THR-824; ALA-863; ALA-935; TRP-943; ALA-989; VAL-1038; CYS-1108; LEU-1108; LYS-1122; ARG-1201; GLN-1300; LEU-1380; PRO-1388; ARG-1408; LEU-1486; ARG-1488; TYR-1490; MET-1526; ASN-1532; THR-1562; TRP-1640; LEU-1776; THR-1846; GLU-1961; SER-1977; PHE-2027; GLN-2030; PRO-2035; LEU-2050; CYS-2107; HIS-2107; TRP-2139; ARG-2150 AND TYR-2150; VARIANTS CORD3 GLN-1640 AND ASP-2146; VARIANTS HIS-212; ARG-423; GLN-943; THR-1637; ILE-1868 AND LEU-1948;

Denaturing HPLC profiling of the ABCA4 gene for reliable detection of allelic variations.
Stenirri S.; Fermo I.; Battistella S.; Galbiati S.; Soriani N.; Paroni R.; Manitto M.P.; Martina E.; Brancato R.; Allikmets R.; Ferrari M.; Cremonesi L.;
Clin. Chem. 50:1336-1343(2004)
Cited for: VARIANTS STGD1 TRP-18; LYS-96; VAL-108; LEU-143; GLN-152; HIS-212; GLN-223; SER-230; 245-TYR--ASP-2273 DEL; THR-246; GLU-498; PRO-541; ARG-550; GLN-572; 639-TYR--ASP-2273 DEL; SER-641; CYS-653; VAL-690; 700-TRP--ASP-2273 DEL; ASP-767; ARG-821; ALA-863; 876-GLN--ASP-2273 DEL; ILE-897; ASP-954; SER-965; ASP-978; LYS-1022; VAL-1038; ASP-1050; LYS-1087; CYS-1098; PRO-1099; CYS-1108; HIS-1108; LEU-1129; ARG-1203; ASP-1203; 1300-ARG--ASP-2273 DEL; GLN-1300; TYR-1490; ARG-1512; MET-1526; ASP-1598; 1652-TYR--ASP-2273 DEL; ASP-1762; ASN-1838; TYR-1838; GLU-1961; PHE-1970; PHE-2027; GLN-2030; LEU-2050; HIS-2107; TRP-2139; LEU-2149; TYR-2150; ASN-2177 AND VAL-2241; VARIANTS ARG-423; GLN-943; ASN-1204; LEU-1380; ILE-1868 AND LEU-1948;

Frequency of ABCA4 mutations in 278 Spanish controls: an insight into the prevalence of autosomal recessive Stargardt disease.
Riveiro-Alvarez R.; Aguirre-Lamban J.; Lopez-Martinez M.A.; Trujillo-Tiebas M.J.; Cantalapiedra D.; Vallespin E.; Avila-Fernandez A.; Ramos C.; Ayuso C.;
Br. J. Ophthalmol. 93:1359-1364(2009)
Cited for: VARIANTS STGD1 VAL-156; CYS-212; LYS-380; ARG-550; PRO-572; TRP-602; ARG-607; CYS-653; ASP-767; ILE-897; ALA-901; MET-931; SER-965; MET-1019; HIS-1108; LEU-1129; LEU-1380; ILE-1433; LEU-1486; TYR-1490; GLN-1640; TRP-1640; ARG-1748; ASP-1799; PRO-1940; GLU-1961; SER-1977; PHE-2027; ARG-2060; HIS-2107; TYR-2150 AND VAL-2241;

Novel mutations in of the ABCR gene in Italian patients with Stargardt disease.
Passerini I.; Sodi A.; Giambene B.; Mariottini A.; Menchini U.; Torricelli F.;
Eye 24:158-164(2010)
Cited for: VARIANTS STGD1 21-GLN--ASP-2273 DEL; LEU-68; HIS-96; LYS-96; SER-172; CYS-212; LYS-415; PRO-541; 572-ARG--ASP-2273 DEL; LYS-616; CYS-653; VAL-690; 700-TRP--ASP-2273 DEL; ASP-767; ARG-821; ARG-840; MET-931; SER-965; PRO-970; PRO-977; ASP-978; MET-1019; VAL-1038; TRP-1055; GLU-1078; LYS-1087; CYS-1098; 1099-SER--ASP-2273 DEL; CYS-1108; 1177-CYS--ASP-2273 DEL; 1332-GLN--ASP-2273 DEL; LEU-1380; 1408-TRP--ASP-2273 DEL; ILE-1433; 1461-TRP--ASP-2273 DEL; 1479-TRP--ASP-2273 DEL; SER-1484; MET-1526; ASP-1598; ASN-1696; GLU-1961; PHE-1970; SER-1977; 2030-ARG--ASP-2273 DEL; LYS-2096; GLN-2140 AND PRO-2221;

Detection rate of pathogenic mutations in ABCA4 using direct sequencing: clinical and research implications.
Downes S.M.; Packham E.; Cranston T.; Clouston P.; Seller A.; Nemeth A.H.;
Arch. Ophthalmol. 130:1486-1490(2012)
Cited for: VARIANTS 219-ARG--ASP-2273 DEL; HIS-576; ARG-1488; MET-1526; CYS-1557; THR-1562; GLU-1773; ASP-1794; 2040-ARG--ASP-2273 DEL AND CYS-2107; VARIANTS STGD1 TYR-54; GLN-152; ARG-184; PHE-184; CYS-212; SER-418; LYS-471; MET-643; CYS-653; 782-TRP--ASP-2273 DEL; ALA-863; GLN-943; ALA-989; ARG-991; MET-1019; LYS-1022; SER-1097; CYS-1108; LYS-1122; LEU-1129; ARG-1201; LEU-1380; LYS-1442; LEU-1486; TYR-1490; ASP-1598; ASP-1754; THR-1846; GLU-1961; PHE-2027; GLN-2030; CYS-2106; LYS-2131; TYR-2150 AND PRO-2237;

ABCA4 mutational spectrum in Mexican patients with Stargardt disease: Identification of 12 novel mutations and evidence of a founder effect for the common p.A1773V mutation.
Chacon-Camacho O.F.; Granillo-Alvarez M.; Ayala-Ramirez R.; Zenteno J.C.;
Exp. Eye Res. 109:77-82(2013)
Cited for: VARIANTS STGD1 TRP-18; HIS-24; 89-GLU--ASP-2273 DEL; CYS-212; ASP-241; TRP-290; TRP-602; GLU-818; SER-965; ARG-1014; LEU-1129; LEU-1380; PHE-1416 DEL; HIS-1443; TRP-1551 DEL; THR-1556; 1681-VAL--VAL-1685 DEL; GLN-1705; VAL-1773; ASN-1775; HIS-1779; ILE-1868; GLN-1942; VAL-2074 AND ARG-2128; VARIANTS GLN-943 AND ILE-2255;

Functional Characterization of ABCA4 Missense Variants Linked to Stargardt Macular Degeneration.
Garces F.A.; Scortecci J.F.; Molday R.S.;
Int. J. Mol. Sci. 22:0-0(2020)
Cited for: FUNCTION; SUBCELLULAR LOCATION; CHARACTERIZATION OF VARIANTS STGD1 CYS-653; HIS-653; ARG-661; SER-686; VAL-690; MET-716; TYR-764; ARG-765; ASN-765; ASP-767; PRO-797; GLU-818; ARG-821; THR-824; ARG-840; ALA-849; ASP-851; THR-854; LEU-1380; LYS-1399; ASN-1696; GLU-1703; LYS-1703; LEU-1705; VAL-1773; ASP-1794; PRO-1794; ASP-1805; ASN-1838; ASP-1838; TYR-1838; TRP-1843; ILE-1868 AND HIS-1898; CHARACTERIZATION OF VARIANTS HIS-846; GLU-1773 AND CYS-1898; MUTAGENESIS OF HIS-1838;

Disclaimer: Any medical or genetic information present in this entry is provided for research, educational and informational purposes only. They are not in any way intended to be used as a substitute for professional medical advice, diagnostic, treatment or care.